The Dermacea USP type VII gauze sponges are made of cotton for absorbency.. The material promotes wound drainage to help with healing.. The cotton gauze dressings have an eight-ply layer that offers protection.. The soft sponges are ideal for other applications such as wound prepping, packing, debriding and cleaning.. The sterile 2 x 2 inch gauze sponges won't infect wounds.. . WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov